Lesson 7 has a few errors

Problem_007/7_007.cpp

@@ -1,7 +1,43 @@
-#include <iostream>
-using namespace std;
+#include<iostream>
+using namespace std; 
+#define MAX 16
 
-int main()
+void Nhap(float[][MAX], int&, int&);
+bool ktDoiXung(float[][MAX], int, int);
+
+int main ()
+{
+	float a[MAX][MAX];
+	int m,n;
+	Nhap(a, m, n);
+	if (m != n)
+	{
+		cout << "No";
+		return 0;
+	}
+	if (ktDoiXung(a, m, n))
+		cout << "Yes";
+	else
+		cout << "No";
+	return 0;
+}
+
+void Nhap(float a[][MAX], int& m, int& n)
+{
+	cin >> m;
+	cin >> n;
+	for (int i = 0; i < m; i++)
+		for (int j = 0; j < n; j++)
+			cin >> a[i][j];
+}
+
+bool ktDoiXung(float a[][MAX], int m, int n)
 {
-    return 0;
-}
+	if (m != n)
+		return 0;
+	for (int i = 0; i < m; i++)
+		for (int j = i + 1; j < n; j++)
+			if (a[i][j] != a[j][i])
+				return 0;
+	return 1;
+}